A System Characteristic Analysis Method Based on Multiport ABCD Parameters

A technology of system characteristics and analysis methods, which is applied in the field of system characteristic analysis based on multi-port ABCD parameters, can solve problems such as increasing computational complexity and system analysis difficulty, cumbersome parameter conversion, etc., to achieve effective solutions and overcome application limitations.

Active Publication Date: 2019-12-13
BEIJING RACOBIT ELECTRONIC INFORMATION TECH CO LTD
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Problems solved by technology

Even so, the multi-port T parameter still has certain application limitations, that is, the T parameter itself refers to the port incident and reflected waves as the parameters of interest, so cumbersome parameter conversion is required when analyzing electronic systems that focus on port voltage and current. Increase computational complexity and system analysis difficulty

Method used

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  • A System Characteristic Analysis Method Based on Multiport ABCD Parameters
  • A System Characteristic Analysis Method Based on Multiport ABCD Parameters
  • A System Characteristic Analysis Method Based on Multiport ABCD Parameters

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0041] The design principle of the present invention is to use the voltage and current of the ports as parameters to characterize the characteristics of the multi-port system.

[0042] figure 1 A typical N-port system is illustrated, which includes m input ports and n output ports, and the voltage and current of the ports are defined as V 1 -V N and I 1 -I N , N=m+n. The multi-port ABCD parameters provided by the present invention are defined as:

[0043]

[0044] in

[0045]

[0046] There is a certain conversion relationship between the multiport ABCD parameter and the multiport Z parameter. for figure 1 The schematic N-port system, whose multi-port Z-parameters are expressed as:

[0047]

[0048] in

[0049]

[0050] Multi-port ABCD parameters and Z parameters can be converted into each other as follows:

[0051] Calcul...

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Abstract

The invention provides a system characteristic analysis method based on a multi-port ABCD parameter. The system comprises m input ports and n output ports, wherein N is a sum of the m and the n. To be specific, the method includes: measuring a Z parameter MZ of a multi-port system; on the basis of the Z parameter, calculating an ABCD parameter of the multi-port system; and analyzing characteristics of the multi-port system based on the ABCD parameter. According to the method, because the characteristics of the multi-port system are represented by using voltages and currents of the ports as parameters, the application restriction of the multi-port T parameter is eliminated, so that an accurate and effective solution is provided for the electronic system analysis and design related to voltages and currents of the ports.

Description

technical field [0001] The invention belongs to the technical field of electronic system analysis and design, and in particular relates to a system characteristic analysis method based on multi-port ABCD parameters. Background technique [0002] In the field of electronic system design, network parameter theory is widely used in system analysis, including many types of network parameters, such as scattering parameters (S), impedance parameters (Z), admittance parameters (Y), transmission parameters (T), ABCD parameters etc. Among them, the S and T parameters take the port incident wave and reflected wave as the concerned parameters, while the Z, Y and ABCD parameters take the port voltage and current as the concerned parameters. These parameters use different parameters to characterize the system characteristics from different angles. System analysis provides the basis. [0003] As the complexity of electronic systems continues to increase, the factors that affect system c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 李兴明高加林曾大治
Owner BEIJING RACOBIT ELECTRONIC INFORMATION TECH CO LTD
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